<!DOCTYPE html>
<html lang="zh" dir="ltr">
  <head>
    <meta charset="utf-8">
    <title>Border Animate Button</title>
    <link rel="stylesheet" href="./style.css">
  </head>
  <body>
    <a href="javascript:void(0)">
      <span></span>
      <span></span>
      <span></span>
      <span></span>
      Button
    </a>
  </body>
</html>
